Results 111 to 120 of about 730,491 (396)
Ultrasound Measurement Technique for Validation of Cryogenic Flows
Proceedings, 2018 An ultrasound sensor system based on the transmission-mode approach is developed to enable the monitoring and sensing of cryogenic liquids and gases—especially gaseous bubbles and gas-liquid interfaces in liquid nitrogen (LN2). Common sensors do not meet
David Becker +3 more
doaj +1 more source
On the role of actuation for the control of streaky structures in boundary layers
, 2019 This work deals with the closed-loop control of streaky structures induced by free-stream turbulence in a zero-pressure gradient, transitional boundary layer, by means of localized sensors and actuators.
Cavalieri, André V G. +4 more
core +1 more source
Synopsis: This volume presents a timely discussion on one of the most fundamental and yet elusive questions in historical linguistics: why do certain linguistic changes take place in some languages at specific times, but not in others, even under similar conditions?
De Smet, Hendrik +2 more
openaire +1 more source
Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules
Advanced Functional Materials, EarlyView.A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang +7 more
wiley +1 more source
Genetic modules for α‐factor pheromone controlled growth regulation of Saccharomyces cerevisiae
Engineering in Life SciencesSaccharomyces cerevisiae is a commonly used microorganism in the biotechnological industry. For the industrial heterologous production of compounds, it is of great advantage to work with growth‐controllable yeast strains.
Uta Gutbier +3 more
doaj +1 more source
Micromachines, 2017 Electrohydrodynamic thrust is an emerging propulsion mechanism for flying insect-scale robots. There is a need to both minimize the operating voltage and maximize the output force when designing microfabricated electrodes for use in these robots. In this
Daniel S. Drew, Kristofer S. J. Pister
doaj +1 more source
Concept for a gas operated actuator [PDF]
, 1970 Palladium valve, permeable to hydrogen gas, is used to fill a bellows mechanism from a source of hydrogen to power an actuator. A similar valve provides retraction. The valves have no moving parts and are heat operated.
Ambruso, A.
core +1 more source
Nature Chemistry, 2010 A tiny claw that opens and closes in response to two different enzymes has been fabricated and used to perform a biopsy on a model liver.
openaire +2 more sources
A Universal Way to Manipulate Droplet via Light‐Fueled Thermocapillary Convection
Advanced Functional Materials, EarlyView.A non‐contact light‐induced droplet manipulation strategy fueled by mid‐infrared (MIR) light irradiation is introduced. No additional additives and/or complex substrate are required. Here, thermocapillary convection, directly generated by temperature gradient at outer surface of droplet via localized surface heating, plays a key role to propel the ...
Hyesun Hwang +5 more
wiley +1 more source